In October, Musk tweeted that The Boring Company’s first tunnel would be ready to use on December 10, but he did not mention that the transport cars and “ground to car” elevators would be revealed as well. It’s unclear if the tunnel and the cars will be available for public usage or if this will merely be a demonstration.

The tunnel revealed at the December 18 event will cover about 2 miles, beginning near SpaceX headquarters in the Los Angeles suburb of Hawthorne. The company is also working on plans for a tunnel near Dodger Stadium, called the Dugout Loop, that would transport fans from nearby subways directly to the stadium.

The company faced one of its first major setbacks in November after local groups sued the city of Los Angeles for exempting a Boring Company tunnel project from environmental regulations. The Boring Company subsequently agreed to withdraw its plans for that project, which would have consisted of a second 2-mile stretch, this time under western Los Angeles.